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71695524990 = 235109187711681
BaseRepresentation
bin100001011000101100…
…0101110010001111110
320212001120210000220110
41002301120232101332
52133313023244430
652534135530450
75115452623125
oct1026130562176
9225046700813
1071695524990
11284512890a1
1211a8a829a26
1369b77b808b
143681c94abc
151ce93cd7b0
hex10b162e47e

71695524990 has 64 divisors (see below), whose sum is σ = 173755264320. Its totient is φ = 18931691520.

The previous prime is 71695524973. The next prime is 71695525003. The reversal of 71695524990 is 9942559617.

It is a self number, because there is not a number n which added to its sum of digits gives 71695524990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6131950 + ... + 6143630.

It is an arithmetic number, because the mean of its divisors is an integer number (2714926005).

Almost surely, 271695524990 is an apocalyptic number.

71695524990 is an abundant number, since it is smaller than the sum of its proper divisors (102059739330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71695524990 is a wasteful number, since it uses less digits than its factorization.

71695524990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13677.

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 71695524990 in words is "seventy-one billion, six hundred ninety-five million, five hundred twenty-four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 109 218 327 545 654 1090 1635 1877 3270 3754 5631 9385 11262 11681 18770 23362 28155 35043 56310 58405 70086 116810 175215 204593 350430 409186 613779 1022965 1227558 1273229 2045930 2546458 3068895 3819687 6137790 6366145 7639374 12732290 19098435 21925237 38196870 43850474 65775711 109626185 131551422 219252370 328878555 657757110 2389850833 4779701666 7169552499 11949254165 14339104998 23898508330 35847762495 71695524990